Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3277ed9ad9e7084…

MALICIOUS

PDF

63.8 KB Created: 2020-04-07 23:58:06 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 739989253e199c5f8053225c3f53c564 SHA-1: b8d9f7c8ea365b5b1c757d2ccc53a6eee5c978d7 SHA-256: d3277ed9ad9e70841a5aa36069b7eb657070e0370c4b9752c06b4c68f91d7214
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body also contains a URL, which is likely part of this distribution scheme. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://fusionjumc.org/uploads/1/3/0/5/130588590/130588590.html#shijou+saikyou+no+deshi+kenichi+ova+7 PDF link annotation
    • http://thecabanasnackshack.com/uploads/1/3/1/0/131071113/04c86e63990400b.pdfIn PDF document text
    • http://sweetathomebymimy.com/uploads/1/3/0/5/130588222/wadotodug.pdfIn PDF document text
    • http://mindstate.store/uploads/1/3/1/4/131408415/vinigobojovumaxuva.pdfIn PDF document text
    • http://glamglowstyle.com/uploads/1/3/0/4/130489926/9306411.pdfIn PDF document text
    • http://druecrookston.com/uploads/1/3/0/7/130775172/jawaziga-wetakan-febediva.pdfIn PDF document text
    • http://thetapbox.com/uploads/1/3/0/6/130604580/dunibofuvetoxel_pepizidenijo_gegemorubenelef.pdfIn PDF document text
    • http://omniplast-de.net/uploads/1/3/1/4/131406885/565390.pdfIn PDF document text
    • http://khaledelkhidergroup.com/uploads/1/3/0/5/130551210/4428322.pdfIn PDF document text
    • http://keenkeee.com/uploads/1/3/1/4/131406547/kudigunakesajado.pdfIn PDF document text
    • http://frescosexpress.com/uploads/1/3/0/8/130814718/ruwil.pdfIn PDF document text
    • http://familysuccesscenter.net/uploads/1/3/0/6/130639508/b264c4d14a7.pdfIn PDF document text
    • http://wolfhoundfinancial.com/uploads/1/3/0/7/130740049/2273162.pdfIn PDF document text
    • http://thecabanasnackshack.com/uploads/1/3/1/0/131071113/04c86e63990400b.pdf������In PDF document text
    • http://sweetathomebymimy.com/uploads/1/3/0/5/130588222/wadotodug.pdf������In PDF document text
    • http://mindstate.store/uploads/1/3/1/4/131408415/vinigobojovumaxuva.pdf������In PDF document text
    • http://glamglowstyle.com/uploads/1/3/0/4/130489926/9306411.pdf������In PDF document text
    • http://druecrookston.com/uploads/1/3/0/7/130775172/jawaziga-wetakan-febediva.pdf������In PDF document text
    • http://thetapbox.com/uploads/1/3/0/6/130604580/dunibofuvetoxel_pepizidenijo_gegemorubenelef.pdf������In PDF document text
    • http://omniplast-de.net/uploads/1/3/1/4/131406885/565390.pdf������In PDF document text
    • http://khaledelkhidergroup.com/uploads/1/3/0/5/130551210/4428322.pdf������In PDF document text
    • http://keenkeee.com/uploads/1/3/1/4/131406547/kudigunakesajado.pdf������In PDF document text
    • http://frescosexpress.com/uploads/1/3/0/8/130814718/ruwil.pdf������In PDF document text
    • http://familysuccesscenter.net/uploads/1/3/0/6/130639508/b264c4d14a7.pdf������In PDF document text
    • http://wolfhoundfinancial.com/uploads/1/3/0/7/130740049/2273162.pdf������In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000c115.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC115 25708 bytes
SHA-256: f5c048286d2ff97e0cacf99a678e48b11cef46c0f3b30e3b2dc99e7431d70c06
font_00_sfnt_off000094d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94D9 5904 bytes
SHA-256: b1d68a21b7576ca7bfd4076edeff75f0a9a63a142722922785f0e46ce72346b6
font_01_sfnt_off0000acb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACB7 6232 bytes
SHA-256: b9fb17b1c11b5162917aef76b2da8d5b7234fb7fa73237626db0bb3e50fd0465

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